@article{prisma2020,
  title   = {The PRISMA 2020 statement: an updated guideline for reporting systematic reviews},
  author  = {Page, Matthew J. and McKenzie, Joanne E. and Bossuyt, Patrick M. and others},
  journal = {BMJ},
  volume  = {372},
  pages   = {n71},
  year    = {2021},
  doi     = {10.1136/bmj.n71}
}